Consulting Case Reference

Management Consulting Case Interview Cheat Sheet & Math Guide

Master Profitability Trees, Market Entry, M&A Due Diligence, Market Sizing, and Verified Case Math for McKinsey, BCG, Bain, and strategy consulting loops.

Core Frameworks

Top 4 MECE Case Frameworks for Strategy Rounds

Structured mental models for diagnosing and solving client business challenges.

01 · Profitability Framework

Revenue & Cost Diagnostics

Profit = Revenue − Cost. Decompose Revenue into Price × Volume (by segment). Decompose Cost into Fixed vs Variable costs.

02 · Market Entry

3C & P Framework

Evaluate Market Attractiveness (Size, Growth, Margins), Competitive Landscape, Customer Segments, Company Capabilities, and Financial Feasibility (NPV/Payback).

03 · M&A Due Diligence

Strategic & Financial Synergies

Assess Strategic Rationale, Revenue & Cost Synergies, Valuation & Financing Mix, Integration Risks, and Post-Merger Cultural Alignment.

04 · Market Sizing

Top-Down & Bottom-Up Sizing

Top-Down: Population → Demographics → Penetration Rate → Annual Spend. Bottom-Up: Units/Location $\times$ Locations $\times$ Price/Unit.

Case Math Rules

Standard Demographic & Economic Constants

Memorize these baseline numbers for fast, defensible estimation during market sizing cases.

Geography / MetricStandard Baseline ConstantEstimation Rule
US Population330 Million (~300M for rounding)~120 Million households (~2.5 people/household)
European Population (EU)~450 Million~180 Million households
Global Population~8.0 Billion~2 Billion households
Average US Life Expectancy~80 Years~4 Million people per single-year age cohort
Consulting FAQ

Frequently Asked Questions on Consulting Case Interviews

Tips for structured synthesis, business intuition, and case math fluency.

What are the major components of a Management Consulting case interview?

A typical McKinsey, BCG, or Bain case interview consists of 5 phases: Problem Statement Clarification & Hypothesis → MECE Issue Tree Structuring → Data Analysis & Mental Math → Brainstorming & Creativity → Synthesis & Final Recommendation.

What does MECE mean in case structuring?

MECE stands for Mutually Exclusive, Collectively Exhaustive. It ensures that every branch of your issue tree covers a distinct domain without overlap while together covering 100% of the potential problem space.

How does ClawPad prevent arithmetic mistakes during consulting market sizing?

ClawPad stages the case math so you rehearse population sizing formulas, revenue trees, and break-even calculations step by step, and the capacity calculator lets you sanity-check your own numbers before you say them.

Rehearse case interviews with step-by-step math

Install ClawPad ($39/mo) and practice management consulting cases.

Download ClawPad